Define a salt bridge.
A) A pathway composed of salt water, that ions pass through.
B) A pathway in which no ions flow.
C) A pathway between the cathode and anode in which ions are reduced.
D) A pathway between the cathode and anode in which ions are oxidized.
E) A pathway by which counterions can flow between the half-cells without the solutions in the half-cell totally mixing.

Question

Quizplus · Accepted Answer

A salt bridge is a part of an electrochemical cell that allows the flow of ions between the anode and cathode while maintaining electrical neutrality in each half-cell. It is typically made up of an electrolyte solution (usually a salt) that is separated from the solutions in each half-cell by a porous membrane. Counterions from the salt bridge can flow into each half-cell, allowing the current to continue flowing without the solutions in each half-cell mixing together. Choice E is the best choice because it accurately describes the function and purpose of a salt bridge in an electrochemical cell.

Define a Salt Bridge